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| author | Chao Yu <chao2.yu@samsung.com> | 2015-05-18 16:43:02 +0800 |
|---|---|---|
| committer | Richard Weinberger <richard@nod.at> | 2015-06-02 11:41:38 +0200 |
| commit | a1fe33af5f8c5f5aebe68d22125d19e48b8e601c (patch) | |
| tree | d86bdb38a53af379bf76888f779214deb6d9edb0 /fs/ubifs/super.c | |
| parent | 2bf50d42f3a418153d2964ca0f25655177f36445 (diff) | |
| download | linux-a1fe33af5f8c5f5aebe68d22125d19e48b8e601c.tar.bz2 | |
ubifs: fix to check error code of register_shrinker
register_shrinker() in ubifs_init() can fail due to fail to call kzalloc.
This patch fixes to check the return value of register_shrinker, otherwise
our shrinker may be unregistered after ubifs initialized successfully.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'fs/ubifs/super.c')
| -rw-r--r-- | fs/ubifs/super.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c index 75e6f04bb795..fa83d1bbba44 100644 --- a/fs/ubifs/super.c +++ b/fs/ubifs/super.c @@ -2245,7 +2245,9 @@ static int __init ubifs_init(void) if (!ubifs_inode_slab) return -ENOMEM; - register_shrinker(&ubifs_shrinker_info); + err = register_shrinker(&ubifs_shrinker_info); + if (err) + goto out_slab; err = ubifs_compressors_init(); if (err) @@ -2269,6 +2271,7 @@ out_compr: ubifs_compressors_exit(); out_shrinker: unregister_shrinker(&ubifs_shrinker_info); +out_slab: kmem_cache_destroy(ubifs_inode_slab); return err; } |